Remove the plugin download and enable DOCKER_CLI_EXPERIMENTAL

Dockerfile

@@ -1,41 +1,39 @@
+FROM debian:stable-slim as BUILDER
+
+# TODO disable this flag once it's not needed for `buildx` anymore
+ENV DOCKER_CLI_EXPERIMENTAL=enabled
+
 FROM debian:stable-slim
 LABEL maintainer="docker@ix.ai" \
       ai.ix.repository="ix.ai/docker-buildx-qemu"
 
-# Upgrades the image, Installs docker and qemu, installs buildx plugin and prints the version to the file
-# TODO Use docker stable once it properly supports buildx
+# Upgrades the image, Installs docker and qemu
 RUN set -eux; \
   export DEBIAN_FRONTEND=noninteractive; \
   export TERM=linux; \
   apt-get update; \
   apt-get -y dist-upgrade; \
   apt-get install -y --no-install-recommends \
     apt-transport-https \
-    ca-certificates \
-    curl \
     gnupg2 \
     software-properties-common \
+    \
+    ca-certificates \
+    \
+    binfmt-support \
+    qemu-user-static \
+    \
+    git \
+    jq \
+    curl \
   ; \
   \
   curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add - ; \
   add-apt-repository "deb https://download.docker.com/linux/debian $(lsb_release -cs) stable"; \
   apt-get update; \
   apt-get install -y  --no-install-recommends \
     docker-ce-cli \
-    binfmt-support \
-    qemu-user-static \
-    git \
-    jq \
-  ; \
-  \
-  mkdir -p ~/.docker/cli-plugins; \
-  export ARCH=$(dpkg --print-architecture); \
-  echo Running on $ARCH; \
-  curl -s https://api.github.com/repos/docker/buildx/releases/latest \
-    | grep "browser_download_url.*linux-$ARCH" | cut -d : -f 2,3 | tr -d \" \
-    | xargs curl -sL -o ~/.docker/cli-plugins/docker-buildx \
   ; \
-  chmod a+x ~/.docker/cli-plugins/docker-buildx; \
   \
   apt-get autoremove --purge -y \
     apt-transport-https \